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WO/2020/178976A1 |
In optical fiber sensors, sensor signals obtained differ according to the circumstances of installation, in locations being observed, of optical fibers serving as sensors, and it is difficult to perform accurate measurements. Therefore, ...
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WO/2020/180861A1 |
Systems and methods include a number of optical pulses are transmitted by transmitting, by a distributed acoustic sensor (DAS), where the optical pulses are transmitted at an input port associated with a multimode fibers (MMF) used by th...
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WO/2020/171590A1 |
According to an embodiment of the present invention, an electronic device may comprise a housing and an ultrasonic sensor assembly positioned in the housing, wherein the ultrasonic sensor assembly comprises: an ultrasonic sensor; a horn ...
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WO/2020/168589A1 |
A method for automatically detecting a free vibration response data segment of a high-speed rail bridge when a train passes, comprising: first, determining, on the basis of the maximum value of a moment at where the absolute maximum valu...
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WO/2020/170191A1 |
A road safety barrier assembly (1) for detecting an impact of a vehicle, comprising: a road safety barrier (2); an electric circuit (3) that can be supplied with direct current, comprising: an outward electric cable (4) and a return elec...
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WO/2020/166057A1 |
This optical fiber sensing system comprises: a cable (20) which includes an optical fiber, a reception unit (31) which receives, from at least one optical fiber contained within the cable (20), an optical signal having vibrations overlai...
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WO/2020/166363A1 |
This thermoelectric power generation device comprises a thermoelectric power generation module, a vibration sensor that is driven by the electrical power generated by the thermoelectric power generation module, and a wireless communicati...
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WO/2020/166324A1 |
This invention relates to an information processing device and method and a program that facilitate sound field visualization. The information processing device comprises: a calculation unit for calculating, at a first time interval, the...
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WO/2020/167869A1 |
Embodiments of the invention include a system and method for detecting wood-boring species of insects in a structure (16), involving one or more primary (14) and reference (18) sensors and a signal conditioning and acquisition device (22...
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WO/2020/148547A9 |
An infrasound detector comprises an infrasound transducer, signal feedback path, and feedback force transducer. The infrasound transducer is configured to transduce an infrasound signal to an electrical signal. The signal feedback path i...
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WO/2020/167243A1 |
The present invention discloses an apparatus (100) for tracing pile set during pile driving of a pile (150) comprising: a panel (110) for attaching to the pile (150); a rotatable holding mechanism (120) with remotely controllable functio...
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WO/2020/161437A1 |
The invention relates to a method for monitoring the state of health of at least two vibration sensors of a twin-spool turbomachine comprising a low-pressure spool and a high-pressure spool, one vibration sensor being located at the fron...
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WO/2020/163572A1 |
Disclosed are improved distributed optical fiber sensing systems, methods, and structures employing disparate point sensors that utilize uni-directional signal transmission via the distributed optical fiber such that a separate communica...
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WO/2020/162168A1 |
The purpose of the present invention is to provide: a vibration detection method capable of accurately detecting vibration physically applied to an optical fiber by using a simple criterion; a signal processing device; and a program. In ...
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WO/2020/160663A1 |
A method of wrapping optical fiber around a fluid conduit. The optical fiber is wrapped at least partially around the conduit. The optical fiber is secured relative to the conduit at one or more securing locations, thereby defining a seq...
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WO/2020/162426A1 |
An analysis device (100) is provided with an acquisition unit (102) that acquires the results of detection by a plurality of sensors provided to a production facility (10) and a determination unit (104) that performs abnormality determin...
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WO/2020/162425A1 |
An analysis device (100) is provided with: an image processing unit (102) that converts, into an image, a the result of detection by a vibration sensor provided to a production facility (10); a generation unit (104) that generates a disc...
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WO/2020/157917A1 |
The optical fiber sensing system according to the present disclosure comprises: a cable (20) including optical fibers; a reception unit (31) for receiving an optical signal from at least one optical fiber included in the cable (20) and, ...
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WO/2020/158952A1 |
The purpose of the present invention is to obtain a vibration sensor suitable for improving vibration sensing precision. The vibration sensor according to one aspect of the present invention is characterized by having: a substrate having...
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WO/2020/157818A1 |
This diagnostic device for diagnosing a piece of machinery that includes a driving part and a driven part rotationally driven by the driving part comprises: a plurality of acoustic sensors that are provided to different locations and tha...
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WO/2020/159944A1 |
The subject matter of this specification can be embodied in, among other things, a method that includes separating, from a few mode optical fiber, a collection of backscattered Rayleigh signals based on a vibration of the few mode optica...
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WO/2020/159090A1 |
A method for displaying a passive cavitation image, which is an image showing characteristic information about a passive cavitation phenomenon, includes: a step for receiving ultrasonic signals generated by the passive cavitation phenome...
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WO/2020/154266A1 |
A rotary union adapted for connection on a support segment for a shaft includes a sensor disposed within a sensor housing, the sensor housing connected to the housing of the rotary union, and a sound conduit having first and second ends,...
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WO/2020/153967A1 |
A sensing system utilizes multiple wavelengths communicated on a single pulse to a sensor, for example, an optical fiber. Backscattered or reflected light from a number of locations or depths along the sensor are analyzed to correct for ...
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WO/2020/147098A1 |
A ground vibration signal-based human body fall detection method and human body fall detection system, the method comprising: three geophones collecting ground vibration signals (S1); performing filtering noise reduction and endpoint seg...
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WO/2020/149072A1 |
This tactile sensor (10) for detecting a tactile sensation received from an object (A) comprises: a touching part (12) for forming a closed space between the touching part (12) and the surface of the object (A) by touching the object (A)...
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WO/2020/144674A1 |
A method comprising: directing a continuous-wave source laser beam to an optical resonator that is impinged by acoustic waves, wherein said source laser beam is propagated through said optical resonator; and detecting a signal associated...
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WO/2020/143089A1 |
Disclosed are an automobile interior noise detection method and device and a computer equipment. The automobile interior noise detection method comprises: acquiring in real time noise signals and detecting the noise values of the noise s...
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WO/2020/145004A1 |
This photography guide device has a detection means and an output means. The detection means detects a difference in position between a photographing candidate position and a prescribed photographing position by comparing a candidate ima...
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WO/2020/146593A1 |
An acoustic element includes a nanovoided polymer layer having a first nanovoid topology in an unactuated state and a second nanovoid topology different than the first nanovoid topology in an actuated state. Capacitive actuation of the n...
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WO/2020/140551A1 |
An identification method for a motor system (2), comprising the steps of: establishing a functional series filter model for describing the motor system (2) (S1); generating a logarithmic sweep signal (S2); feeding the generated logarithm...
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WO/2020/140598A1 |
A visual detecting device for vibration state, a manufacturing method therefor and an application thereof, the visual detecting device for vibration state comprising a hypersensitive vibration sensor (1) and an electrochromic device (2) ...
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WO/2020/140593A1 |
A method and system for measuring the total sound pressure level of noise, and a computer-readable storage medium, wherein same relate to the field of acoustics. The method for measuring the total sound pressure level of noise comprises ...
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WO/2020/134890A1 |
A vibration and temperature sensor for monitoring data of safe and healthy operation of an operating and rotating device, comprising a housing for packaging; a triaxial vibration sensing module, a temperature monitoring module, a filteri...
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WO/2020/135890A1 |
Provided is a low-frequency vibration detection device employing laser interference, comprising an optical system and a detection system. The optical system and the detection system are fixedly installed to a base plate. The optical syst...
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WO/2020/138154A1 |
This method specifies time-space, and detects and identifies vibration on the basis of an optical fiber signal feature. The method includes: a step 1 for expanding a feature with respect to initial data of a vibration signal from a distr...
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WO/2020/132836A1 |
A method for monitoring a circuit breaker is provided. The method comprises: detecting at least one operation of a circuit breaker to obtain at least one vibration signal of the circuit breaker, each vibration signal being represented as...
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WO/2020/125692A1 |
A method for determining the position of a disturbance source, comprising: determining the intensity of disturbance originating from a disturbance source in an object to be detected, suffered by a detection optical fiber, wherein the det...
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WO/2020/132060A1 |
A mechanical failure detection system for mechanical equipment that has an acoustic capture device disposed in operative proximity to the mechanical equipment in order to acquire an operative state audio signal from the mechanical equipm...
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WO/2020/132169A1 |
Aspects of the present disclosure describe systems, methods and structures and applications of optical fiber sensing. Of significance, systems, methods, and structures according to aspects of the present disclosure may reuse and/or retro...
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WO/2020/128274A1 |
The invention relates to a marine monitoring and analysis station (100) comprising a floating base and an electric storage battery (110); characterised in that the marine monitoring and analysis station (100) comprises: - an acoustic acq...
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WO/2020/127406A1 |
The present invention relates to a device (16) for detecting noises in the surroundings (12) of a vehicle (14), said device comprising: a housing (20) having a vibrating diaphragm (22) for picking up sound waves from the surroundings; a ...
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WO/2020/128521A1 |
A system (100) for monitoring sound comprising a primary circuit portion(110) and a secondary circuit portion(120). The primary circuit portion(110) is adapted to alternate between a first state of operation and a second state of operati...
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WO/2020/125305A1 |
A series-connected integrated temperature and vibration sensor employing a blazed grating and a fiber Bragg grating optical fiber, for resolving the problem in the prior art in which integrated temperature and vibration sensors have a la...
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WO/2020/051537A9 |
An embodiment of a system includes a light source, an optical assembly, and an electronic circuit. The light source (e.g., a laser) is configured to generate a source optical signal. The optical assembly is configured to direct the sourc...
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WO/2020/121188A1 |
A system (10) includes an optical source, multiple coupler units (22), a controller (20), and a detector (123), The optical source is configured to transmit an optical signal into an optical cable (40). The multiple coupler units are cou...
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WO/2020/119957A1 |
A method of detecting an event by: obtaining a first sample data set; determining a frequency domain feature(s) of the first sample data set over a first time period; determining a first threshold for the a frequency domain feature(s) us...
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WO/2020/118483A1 |
Disclosed in the present application are a coherent light-based vibration source positioning device and method. The method comprises: obtaining n different positions of a surface of a vibration object, the n different positions being arr...
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WO/2020/119305A1 |
Disclosed is a real-time detection algorithm for vibration information of a vibration roller based on acceleration magnitude. A method adopting the algorithm comprises the following steps: an accelerometer mounted on a vibration wheel co...
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WO/2020/120350A1 |
A method for calculating real-time immission values at locations within an area of interest is provided. The method comprises providing an emission dispersion model with real-time information on one or more mobile emitters, for example v...
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